US20240051980A1 - Organometallic compound and application thereof - Google Patents
Organometallic compound and application thereof Download PDFInfo
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- US20240051980A1 US20240051980A1 US18/030,964 US202118030964A US2024051980A1 US 20240051980 A1 US20240051980 A1 US 20240051980A1 US 202118030964 A US202118030964 A US 202118030964A US 2024051980 A1 US2024051980 A1 US 2024051980A1
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- United States
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- substituted
- unsubstituted
- compound
- alkyl
- cpd
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- 150000002902 organometallic compounds Chemical class 0.000 title claims abstract description 41
- 150000001875 compounds Chemical class 0.000 claims abstract description 225
- 239000000463 material Substances 0.000 claims description 28
- -1 C1-C4alkoxyl Chemical group 0.000 claims description 27
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims description 26
- 229910052805 deuterium Inorganic materials 0.000 claims description 26
- 229910052739 hydrogen Inorganic materials 0.000 claims description 24
- 239000001257 hydrogen Substances 0.000 claims description 24
- 238000006467 substitution reaction Methods 0.000 claims description 20
- 125000005913 (C3-C6) cycloalkyl group Chemical group 0.000 claims description 12
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 11
- 125000005104 aryl silyl group Chemical group 0.000 claims description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 10
- 150000002431 hydrogen Chemical group 0.000 claims description 9
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 8
- 229910052731 fluorine Inorganic materials 0.000 claims description 8
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 claims description 7
- 125000003277 amino group Chemical group 0.000 claims description 7
- 229910052794 bromium Inorganic materials 0.000 claims description 7
- 229910052801 chlorine Inorganic materials 0.000 claims description 7
- 150000002527 isonitriles Chemical group 0.000 claims description 7
- 150000002825 nitriles Chemical group 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- FVZVCSNXTFCBQU-UHFFFAOYSA-N phosphanyl Chemical group [PH2] FVZVCSNXTFCBQU-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 125000006527 (C1-C5) alkyl group Chemical group 0.000 claims description 4
- 125000000739 C2-C30 alkenyl group Chemical group 0.000 claims description 4
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- 125000006374 C2-C10 alkenyl group Chemical group 0.000 claims description 2
- 125000004404 heteroalkyl group Chemical group 0.000 claims description 2
- 125000001072 heteroaryl group Chemical group 0.000 claims description 2
- 125000005842 heteroatom Chemical group 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims 2
- 150000002367 halogens Chemical class 0.000 claims 2
- 125000005865 C2-C10alkynyl group Chemical group 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 125000003396 thiol group Chemical group [H]S* 0.000 claims 1
- 238000000295 emission spectrum Methods 0.000 abstract description 10
- 239000002019 doping agent Substances 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 4
- 229920001621 AMOLED Polymers 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 description 142
- 238000003786 synthesis reaction Methods 0.000 description 142
- 238000000746 purification Methods 0.000 description 81
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 64
- 239000002994 raw material Substances 0.000 description 60
- 238000000034 method Methods 0.000 description 58
- 238000001819 mass spectrum Methods 0.000 description 38
- 238000005160 1H NMR spectroscopy Methods 0.000 description 33
- 239000000047 product Substances 0.000 description 24
- 239000012043 crude product Substances 0.000 description 22
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000010408 film Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 150000002504 iridium compounds Chemical class 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- 229910014455 Ca-Cb Inorganic materials 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 101100457453 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) MNL1 gene Proteins 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 2
- 125000003785 benzimidazolyl group Chemical class N1=C(NC2=C1C=CC=C2)* 0.000 description 2
- 125000000609 carbazolyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004440 column chromatography Methods 0.000 description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 125000004987 dibenzofuryl group Chemical group C1(=CC=CC=2OC3=C(C21)C=CC=C3)* 0.000 description 2
- 125000004988 dibenzothienyl group Chemical group C1(=CC=CC=2SC3=C(C21)C=CC=C3)* 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 239000008204 material by function Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 125000004184 methoxymethyl group Chemical group [H]C([H])([H])OC([H])([H])* 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000001624 naphthyl group Chemical group 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 2
- 125000004076 pyridyl group Chemical group 0.000 description 2
- 125000000714 pyrimidinyl group Chemical group 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 125000004306 triazinyl group Chemical group 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
- OPCMVVKRCLOEDQ-UHFFFAOYSA-N 1-(4-chlorophenyl)-2-(methylamino)pentan-1-one Chemical compound ClC1=CC=C(C=C1)C(C(CCC)NC)=O OPCMVVKRCLOEDQ-UHFFFAOYSA-N 0.000 description 1
- 125000004134 1-norbornyl group Chemical group [H]C1([H])C([H])([H])C2(*)C([H])([H])C([H])([H])C1([H])C2([H])[H] 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- 125000004135 2-norbornyl group Chemical group [H]C1([H])C([H])([H])C2([H])C([H])([H])C1([H])C([H])([H])C2([H])* 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical group FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 125000000641 acridinyl group Chemical group C1(=CC=CC2=NC3=CC=CC=C3C=C12)* 0.000 description 1
- 125000003670 adamantan-2-yl group Chemical group [H]C1([H])C(C2([H])[H])([H])C([H])([H])C3([H])C([*])([H])C1([H])C([H])([H])C2([H])C3([H])[H] 0.000 description 1
- 125000004618 benzofuryl group Chemical group O1C(=CC2=C1C=CC=C2)* 0.000 description 1
- 125000004196 benzothienyl group Chemical group S1C(=CC2=C1C=CC=C2)* 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- PBAYDYUZOSNJGU-UHFFFAOYSA-N chelidonic acid Natural products OC(=O)C1=CC(=O)C=C(C(O)=O)O1 PBAYDYUZOSNJGU-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- CZKMPDNXOGQMFW-UHFFFAOYSA-N chloro(triethyl)germane Chemical compound CC[Ge](Cl)(CC)CC CZKMPDNXOGQMFW-UHFFFAOYSA-N 0.000 description 1
- 125000002676 chrysenyl group Chemical group C1(=CC=CC=2C3=CC=C4C=CC=CC4=C3C=CC12)* 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 229940125782 compound 2 Drugs 0.000 description 1
- 229940126214 compound 3 Drugs 0.000 description 1
- 229940125898 compound 5 Drugs 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 125000005299 dibenzofluorenyl group Chemical group C1(=CC=CC2=C3C(=C4C=5C=CC=CC5CC4=C21)C=CC=C3)* 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 125000005745 ethoxymethyl group Chemical group [H]C([H])([H])C([H])([H])OC([H])([H])* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 1
- 239000011737 fluorine Chemical group 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 125000002541 furyl group Chemical group 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 125000001041 indolyl group Chemical group 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 125000000904 isoindolyl group Chemical group C=1(NC=C2C=CC=CC12)* 0.000 description 1
- 125000005956 isoquinolyl group Chemical group 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000001715 oxadiazolyl group Chemical group 0.000 description 1
- 125000005968 oxazolinyl group Chemical group 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 125000004934 phenanthridinyl group Chemical group C1(=CC=CC2=NC=C3C=CC=CC3=C12)* 0.000 description 1
- 125000004625 phenanthrolinyl group Chemical group N1=C(C=CC2=CC=C3C=CC=NC3=C12)* 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- 125000001791 phenazinyl group Chemical group C1(=CC=CC2=NC3=CC=CC=C3N=C12)* 0.000 description 1
- 125000001484 phenothiazinyl group Chemical group C1(=CC=CC=2SC3=CC=CC=C3NC12)* 0.000 description 1
- 125000001644 phenoxazinyl group Chemical group C1(=CC=CC=2OC3=CC=CC=C3NC12)* 0.000 description 1
- QIPHSSYCQCBJAX-UHFFFAOYSA-N propan-2-ylboronic acid Chemical compound CC(C)B(O)O QIPHSSYCQCBJAX-UHFFFAOYSA-N 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000005493 quinolyl group Chemical group 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001935 tetracenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12)* 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
- 229910000404 tripotassium phosphate Inorganic materials 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/0006—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
- C07F15/0033—Iridium compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B59/00—Introduction of isotopes of elements into organic compounds ; Labelled organic compounds per se
- C07B59/002—Heterocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/12—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
- H10K85/342—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising iridium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/05—Isotopically modified compounds, e.g. labelled
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/18—Metal complexes
- C09K2211/185—Metal complexes of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2101/00—Properties of the organic materials covered by group H10K85/00
- H10K2101/10—Triplet emission
Definitions
- the present disclosure relates to the technical field of organic electroluminescence, in particular to an organic light-emitting material applicable to organic electroluminescent devices, and specially in particular to an organometallic compound and application thereof to an organic electroluminescent device.
- OLED organic electroluminescent device
- the OLED includes various organic functional material films with different functions sandwiched between metal electrodes as basic structures, which are similar to a sandwich structure.
- holes and electrons are injected from a cathode and an anode, respectively. After moving a certain distance, the holes and the electrons are compounded in a light-emitting layer, and then released in the form of light or heat to achieve luminescence of the OLED.
- organic functional materials are core components of the OLED, and the thermal stability, photochemical stability, electrochemical stability, quantum yield, film forming stability, crystallinity, and color saturation of the materials are main factors affecting properties of the device.
- the organic functional materials include fluorescent materials and phosphorescent materials.
- the fluorescent materials are usually organic small-molecule materials, which can only utilize 25% of a singlet state for luminescence, so that the luminous efficiency is relatively low. Meanwhile, due to an earth-spin orbit coupling effect caused by a heavy atom effect, the phosphorescent materials can utilize 25% of a singlet state and can also utilize 75% of the energy of triplet excitons, so that the luminous efficiency can be improved.
- the phosphorescent materials are started later, and the thermal stability, service life, and color saturation of the materials need to be improved. Thus, the phosphorescent materials are a challenging topic.
- Various organometallic compounds have been developed to serve as the phosphorescent materials.
- an aryl-benzimidazole iridium compound is disclosed.
- the luminous efficiency of such compound is far from enough to meet market demands.
- a non-patent document published by Wen et al. (Chem. Mater. 2004, 16, 2480-2488) in 2004, a benzimidazole-aromatic ring metallic iridium complex is disclosed.
- the complex has certain luminous efficiency, market application demands are difficult to meet due to too large half-peak width of the material and too short device service life, especially too short T95 service life, and the material needs to be further improved.
- an iridium compound connected with aryl-substituted benzimidazole having steric hindrance on N is disclosed.
- the color saturation, half-peak width of emission spectrum and device properties, especially luminous efficiency and device service life, of the compound need to be improved.
- an iridium compound connected with alkyl-substituted benzimidazole on N is disclosed.
- the compound also has problems such as poor color saturation, too large half-peak width of emission spectrum, insufficient device efficiency and short device service life, and needs to be improved.
- an iridium compound connected with aryl-substituted benzimidazoline-dibenzoheterocycle having steric hindrance on N is disclosed.
- the compound also has related problems of too large half-peak width of emission spectrum, insufficient device efficiency and short device service life, and needs to be improved.
- the compound also has related problems of too large half-peak width of emission spectrum, insufficient device efficiency and short device service life, and needs to be improved.
- the present disclosure provides an organic electroluminescent device with high properties and an organometallic compound material capable of realizing the organic electroluminescent device.
- An organometallic compound of the present disclosure has the following structure as shown in a formula (1).
- An iridium complex provided by the present disclosure has the advantages of great optical and electrical stability, small half-peak width of emission spectrum, high luminous efficiency, long service life and high color saturation, and can be used in organic light-emitting devices.
- the compound has the potential for application in the AMOLED industry as a green light-emitting phosphorescent material.
- An organometallic compound has a structure formula as shown in the following formula (1):
- the two L1 or the two L2 are the same.
- the Ra, the Rd and the Re are hydrogen.
- At least one of the R 1 -R 4 is not hydrogen.
- At least one of the R 5 -R 8 is not hydrogen.
- At least one of the R 1 -R 4 is not hydrogen, and at least one of the R 5 -R 8 is not hydrogen.
- one of the R 1 -R 4 is deuterium, C 1 -C 5 alkyl substituted or unsubstituted with deuterium, or C 3 -C 5 cycloalkyl substituted or unsubstituted with deuterium
- one of the R 5 -R 8 is deuterium, C 1 -C 5 alkyl substituted or unsubstituted with deuterium, or C 3 -C 5 cycloalkyl substituted or unsubstituted with deuterium
- the other groups are hydrogen.
- the R 5 and the R 6 , the R 6 and the R 7 , or the R 7 and the R 8 are connected with each other to form a parallel ring structure as shown in a formula (2):
- the R 4 and the R 5 are connected with each other to form an aliphatic ring structure as shown in a formula (3):
- At least one of the Rb and the Rc is not hydrogen.
- At least one of the Rb and the Rc is substituted or unsubstituted C 1 -C 6 alkyl, or substituted or unsubstituted C 3 -C 6 cycloalkyl.
- At least one of the Rb and the Rc is substituted or unsubstituted C 1 -C 6 alkyl, or substituted or unsubstituted C 3 -C 6 cycloalkyl, and the other group is hydrogen.
- the L1 preferably has one of the following structural formulas, or is partially or completely deuterated or fluorinated correspondingly,
- the L2 preferably has one of the following structural formulas, or is partially or completely deuterated or fluorinated correspondingly,
- the compound as shown in the formula (1) preferably has one of the following structural formulas, or corresponding partial or complete deuterides thereof, or corresponding partial or complete fluorides thereof.
- One of the purposes of the present disclosure is to provide a phosphorescent material containing the compound for an OLED.
- One of the purposes of the present disclosure is to provide an OLED containing the compound.
- the material of the present disclosure has the advantages of high optical and electrochemical stability, small half-peak width of emission spectrum, high color saturation, high luminous efficiency, and long device service life.
- the material of the present disclosure can convert a triplet state into light, so that the luminous efficiency of the OLED can be improved, and the energy consumption can be reduced.
- the compound has the potential for application in the AMOLED industry as a green light-emitting dopant.
- FIG. 1 is a diagram showing the 1HNMR spectrum of a compound CPD 10 of the present disclosure in a deuterated chloroform solution.
- FIG. 2 shows the ultraviolet absorption spectrum and emission spectrum of the compound CPD 10 of the present disclosure in a dichloromethane solution.
- FIG. 3 is a diagram showing the 1HNMR spectrum of a compound CPD 202 of the present disclosure in a deuterated chloroform solution.
- FIG. 4 shows the ultraviolet absorption spectrum and emission spectrum of the compound CPD 202 of the present disclosure in a dichloromethane solution.
- a compound of the present disclosure has a structure formula as shown in the following formula (1):
- Ra, Rb, or Rc when more than two Ra, Rb, or Rc exist, a plurality of the Ra, Rb, or Rc may be separately identical or different.
- At least one of the Rb and the Rc is deuterium, fluorine, substituted or unsubstituted C 1 -C 6 alkyl, or substituted or unsubstituted C 3 -C 6 cycloalkyl, indicating that the Rb is selected from the above groups while the Rc is not selected from the above groups; the Rc is selected from the above groups while the Rb is not selected from the above groups; and the Rb and the Rc are selected from the above groups at the same time.
- C a -C b in the term “substituted or unsubstituted C a -C b X group” refers to the number of carbons when the X group is unsubstituted, excluding the number of carbons of a substituent when the X group is substituted.
- the C 1 -C 10 alkyl specifically includes methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl and isomers thereof, n-hexyl and isomers thereof, n-heptyl and isomers thereof, n-octyl and isomers thereof, n-nonyl and isomers thereof, and n-decyl and isomers thereof, preferably includes methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, and tert-butyl, and more preferably includes propyl, isopropyl, isobutyl, sec-butyl, and tert-butyl.
- the C 3 -C 20 cycloalkyl may include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, 1-adamantyl, 2-adamantyl, 1-norbornyl, and 2-norbornyl, and preferably includes cyclopentyl and cyclohexyl.
- the C 2 -C 10 alkenyl may include vinyl, propenyl, allyl, 1-butadienyl, 2-butadienyl, 1-hexatrienyl, 2-hexatrienyl, and 3-hexatrienyl, and preferably includes propenyl and allyl.
- the C 1 -C 10 heteroalkyl may include mercaptomethyl methyl, methoxymethyl, ethoxymethyl, tert-butoxyl methyl, N,N-dimethyl methyl, epoxy butyl, epoxy pentyl, and epoxy hexyl, and preferably includes methoxymethyl and epoxy pentyl.
- aryl examples include phenyl, naphthyl, anthracyl, phenanthryl, tetracenyl, pyrenyl, chrysenyl, benzo[c]phenanthryl, benzo[g]chrysenyl, fluorenyl, benzofluorenyl, dibenzofluorenyl, biphenyl, triphenyl, tetraphenyl, and fluoranthracyl, and preferably include phenyl and naphthyl.
- heteroaryl may include pyrrolyl, pyrazinyl, pyridyl, pyrimidinyl, triazinyl, indolyl, isoindolyl, imidazolyl, furyl, benzofuryl, isobenzofuryl, dibenzofuryl, dibenzothienyl, azodibenzofuryl, azodibenzothienyl, diazodibenzofuryl, diazodibenzothienyl, quinolyl, isoquinolyl, quinoxalinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, phenothiazinyl, phenoxazinyl, oxazolinyl, oxadiazolyl, furzanyl, thienyl, benzothienyl, dihydroacridinyl, azocarbazoly
- a compound L1-1a (32.0 g, 0.22 mol, 1.0 eq), benzaldehyde (28.2 g, 0.26 mol, 1.20 eq), acetic acid (19.9 g, 0.33 mol, 1.5 eq) and toluene (160 ml) were added to a 500 ml three-mouth flask, vacuumization was conducted for nitrogen replacement for 3 times, and stirring was conducted for reflux at 110° C. for 18 h under the protection of nitrogen. According to monitoring by TLC, the raw material L1-1a was completely reacted. Cooling was conducted to room temperature. 100 ml of deionized water was added for water washing and layering.
- a filter residue was sequentially washed with methanol (100 ml*3) and n-hexane (100 ml*3), and then dried to obtain 25.46 g of a compound CPD 1-1 with a yield of 85.7%.
- the obtained compound was directly used in the next step without purification.
- a dimer CPD 1-1 (15.1 g, 0.021 mol, 1.0 eq) and dichloromethane (1.5 L) were added to a 3 L three-mouth flask and stirred for dissolution.
- Silver trifluoromethanesulfonate (11.24 g, 0.043 mol, 2.0 eq) was dissolved in isopropanol (1.1 L) and then added to an original solution in the reaction flask. Vacuum replacement was conducted for 3 times, and a mixture was stirred at room temperature for 16 h under the protection of N 2 .
- a filtrate was spin-dried, recrystallized for 2 times with tetrahydrofuran/methanol (at a ratio of a product to tetrahydrofuran to methanol was 1:5:5), and beaten for 1 time with n-hexane (80 ml). Then drying was conducted to obtain 4.33 g of a compound CPD 1 with a yield of 65.8%. 4.33 g of the crude product CPD 1 was sublimated and purified to obtain 2.87 g of a sublimated pure product CPD 1 with a yield of 66.2%. The mass spectrum was: 809.95 (M+H).
- a compound L1-3a (32 g, 143.4 mmol, 1.0 eq), isopropylboronic acid (15.13 g, 172.1 mmol, 1.2 eq), dichlorodi-tert-butyl-(4-dimethylaminophenyl)phosphopalladium (II) (2.03 g, 2.87 mmol, 0.02 eq), K 3 PO 4 (60.9 g, 286.9 mmol, 2.0 eq), and toluene (320 ml) were sequentially added into a 1 L three-mouth flask. Vacuumization was conducted for nitrogen replacement for 3 times. A mixture obtained was heated to about 70° C. in an oil bath, stirred for 16 h, and then sampled.
- the raw material L1-3a was basically reacted completely. Cooling was conducted to room temperature. Deionized water was added for water washing for 3 times (150 ml/time). After liquid separation, an organic phase was concentrated under reduced pressure to obtain a solid. A crude product was separated by column chromatography (with a mixture of EA and Hex at a ratio of 1:20) to obtain a product. The product obtained was dried to obtain 19.26 g of a white-like solid compound L1-3b with a yield of 72.1%. The mass spectrum was: 187.2 (M+H).
- a glass substrate with a size of 50 mm*50 mm*1.0 mm including an ITO (100 nm) transparent electrode was ultrasonically cleaned in ethanol for 10 min, dried at 150° C., and then treated with N 2 plasma for 30 min.
- the washed glass substrate was installed on a substrate support of a vacuum evaporation device.
- a compound HATCN for covering the transparent electrode was evaporated on the surface of the side having a transparent electrode line to form a thin film with a thickness of 5 nm.
- a layer of HTM1 was evaporated to form a thin film with a thickness of 60 nm.
- a layer of HTM2 was evaporated on the HTM1 thin film to form a thin film with a thickness of 10 nm.
- a main material 1, a main material 2 and a doping compound including reference compounds X and CPD X
- a doping compound including reference compounds X and CPD X
- a ratio of the main material 1 to the main material 2 to the doping material was 45%:45%:10%.
- an electron transport layer (ETL) and an electron injection layer (EIL) were evaporated on a light-emitting layer in sequence to form a film with a thickness of 35 nm, where the ratio of the ETL to the EIL was 50%:50%.
- a layer of metal Al 100 nm was evaporated to serve as an electrode.
- the compound of the present disclosure used as a dopant in an organic electroluminescent device has more excellent properties, such as driving voltage, luminous efficiency, and device service life.
- the compound of the present disclosure has the advantages of high optical and electrochemical stability, small half-peak width of emission spectrum, high color saturation, high luminous efficiency and long device service life, and can be used in organic electroluminescent devices.
- the compound has the potential for application in the OLED industry as a green light-emitting dopant.
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